Allopathic & Osteopathic Physicians / 2084A2900X
Individual · specialization · Medicare specialty 13
2084A2900X Neurocritical Care Physician
2084A2900X is the taxonomy code for Neurocritical Care, a specialization of Psychiatry & Neurology, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 13, Physician/Neurology, under which 21,541 practitioners are enrolled.
- 1Taxonomy code 2084A2900X
- 2Level Specialization
- 3Medicare specialty 13 Physician/Neurology
- 4Codes in this group 238
Definition
The medical subspecialty of Neurocritical Care is devoted to the comprehensive, multisystem care of the critically-ill neurological patient. Like other intensivists, the neurointensivist generally assumes the primary role for coordinating the care of his or her patients in the ICU, both the neurological and medical management of the patient. They may also provide consultative services for these patients as requested within the health system.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 2084A2900X sits
- Group: Allopathic & Osteopathic Physicians — code 200 of 238 in the group
- Classification: Psychiatry & Neurology
- Specialization: Neurocritical Care 2084A2900X
Choose 2084A2900X over the general Psychiatry & Neurology code when the provider's training or certification is specifically in neurocritical care; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 2084A2900X to Medicare specialty 13 (Physician/Neurology). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 21,541 practitioners are enrolled under it nationally, and 4 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 2084E0001X Epilepsy Physician; 2084N0400X Neurology Physician; 2084N0402X Neurology with Special Qualifications in Child Neurology Physician; 2085N0700X Neuroradiology Physician.
Related codes
| Code | Psychiatry & Neurology — other specializations |
|---|---|
| 2084F0202X | Forensic Psychiatry |
| 2084P0805X | Geriatric Psychiatry |
| 2084H0002X | Hospice and Palliative Medicine |
| 2084P0005X | Neurodevelopmental Disabilities |
| 2084N0400X | Neurology |
| 2084N0402X | Neurology with Special Qualifications in Child Neurology |
The nearest 6 of 22 other codes under Psychiatry & Neurology; all are on the group page.
History of 2084A2900X
2084A2900X was added to the code set in 2016.
- 2016-07-01 — new
Find providers with 2084A2900X
Using 2084A2900X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.